View aic1731 datasheet:

 AIC1731 300mA, Low Dropout Linear Regulator with Shutdown FEATURES DESCRIPTION Active Low Shutdown Control. AIC1731 is a 300mA low noise, low dropout Very Low Quiescent Current. linear regulator, and is housed in small SOT-23-5 Very Low Dropout Voltage of 470mV at 300mA package. The device is in the “ON” state when Output Current (3.0V Output Version) the SHDN pin is set to logic high level. An 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V Output Voltage. internal P-MOSFET pass transistor is used to Short Circuit and Thermal Protection. ±2% Output Tolerance. achieve 470mV low dropout voltage at 300mA Miniature Package: SOT-23-5 load current. It offers high precision output voltage of ±2%. The quality of low quiescent APPLICATIONS curr